﻿// Copyright (c) 2012 Mokah Nnamezie & Andrew Cooper
// Neo4Net graph database - http://neo4net.codeplex.com
//
// This file is part of Neo4Net - a .Net port of the Neo4j graph database
//
// Neo4Net is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

namespace Neo4Net.Kernel.Configuration
{
    using System;
    using Neo4Net.GraphDb.Factory;
    using Neo4Net.Helpers.Collection;
    using NUnit.Framework;

    [TestFixture]
    class SystemPropertiesConfigurationTest
    {
        [Test]
        public void TestThatSetValidSystemPropertiesArePickedUp()
        {
            try
            {
                Assert.That(new SystemPropertiesConfiguration(typeof(GraphDatabaseSettings)).Apply(DictionaryUtil.StringMap()),
                                Is.EqualTo(DictionaryUtil.StringMap(GraphDatabaseSettings.ReadOnly.Name, GraphDatabaseSetting.True)));

                Environment.SetEnvironmentVariable(GraphDatabaseSettings.ReadOnly.Name, GraphDatabaseSetting.True);

                Assert.That(new SystemPropertiesConfiguration(typeof(GraphDatabaseSettings)).Apply(DictionaryUtil.StringMap()),
                                Is.EqualTo(DictionaryUtil.StringMap(GraphDatabaseSettings.ReadOnly.Name, GraphDatabaseSetting.True)));

                Environment.SetEnvironmentVariable(GraphDatabaseSettings.ReadOnly.Name, "foo");

                Assert.That(new SystemPropertiesConfiguration(typeof(GraphDatabaseSettings)).Apply(DictionaryUtil.StringMap()),
                                Is.EqualTo(DictionaryUtil.StringMap()));
            }
            finally
            {
                Environment.SetEnvironmentVariable(GraphDatabaseSettings.ReadOnly.Name, null);
            }
        }

        [Test]
        public void TestThatSetInvalidSystemPropertiesAreNotPickedUp()
        {
            try
            {
                Environment.SetEnvironmentVariable("foo", "bar");

                Assert.That(new SystemPropertiesConfiguration(typeof(GraphDatabaseSettings)).Apply(DictionaryUtil.StringMap()),
                                    Is.EqualTo(DictionaryUtil.StringMap()));
            }
            finally
            {
                Environment.SetEnvironmentVariable(GraphDatabaseSettings.ReadOnly.Name, null);
            }
        }
    }
}
